The Forestry Act Article 33

The forest periphery may be designated a forest protection area. The area shall be delineated by the government agency, presented to the central government agency for approval, and promulgated by the local government agency.
中文原文 森林法第33條
森林外緣得設森林保護區,由主管機關劃定,層報中央主管機關核定,由當地主管機關公告之。

English translation for reference only; the Chinese text prevails. Not legal advice.